B12 or Placebo effect? Open label study of B12 (1000mcg/d) in 29 fibromyalgia pts showed after 50d, significant reductions in FM Impact Quest. (FIQR; 49.8 to 40.00; p< 0.01), Function, Sxs, anxiety scores all signif improved. https://t.co/MtJWy5xlz9 https://t.co/kzvA1wd3zb